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Class 1 Tungsten vs. EN 1.4587 Stainless Steel

Class 1 tungsten belongs to the otherwise unclassified metals classification, while EN 1.4587 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is class 1 tungsten and the bottom bar is EN 1.4587 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 250
200
Elongation at Break, % 5.7
34
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 98
80
Tensile Strength: Ultimate (UTS), MPa 860
540
Tensile Strength: Yield (Proof), MPa 580
250

Thermal Properties

Latent Heat of Fusion, J/g 160
310
Specific Heat Capacity, J/kg-K 120
470
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 5.1
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
2.0

Otherwise Unclassified Properties

Density, g/cm3 15
8.1
Embodied Carbon, kg CO2/kg material 22
6.3
Embodied Energy, MJ/kg 340
87
Embodied Water, L/kg 140
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
150
Resilience: Unit (Modulus of Resilience), kJ/m3 660
150
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 16
18
Strength to Weight: Bending, points 14
18
Thermal Diffusivity, mm2/s 12
4.5
Thermal Shock Resistance, points 48
13

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
2.0 to 3.0
Iron (Fe), % 0
32.7 to 41.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
28 to 30
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Tungsten (W), % 90
0
Residuals, % 10
0